Hang-up cup



FIG. 1 is a front, top, and right side perspective view showing my new design for a hang-up cup;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left elevational view thereof; and,

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a hang-up cup, as shown and described. 